/* Vulpes Solutions - copper technical system */
:root {
    --ink: #100f0e;
    --surface: #191817;
    --surface-2: #23211f;
    --line: rgba(226, 215, 203, 0.12);
    --line-strong: rgba(226, 215, 203, 0.22);
    --text: #eeeae4;
    --muted: #91877d;
    --copper: #c96a32;
    --copper-light: #e58b4a;
    --copper-dark: #873b20;
    --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

* {
    box-sizing: border-box;
}

::selection {
    background: rgba(201, 106, 50, 0.34);
    color: #fff7ed;
}

html {
    scroll-behavior: smooth;
}

body {
    background:
        radial-gradient(circle at 12% 4%, rgba(201, 106, 50, 0.08), transparent 23rem),
        var(--ink);
}

body::before {
    position: fixed;
    z-index: 40;
    inset: 0;
    pointer-events: none;
    content: "";
    opacity: 0.025;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.8'/%3E%3C/svg%3E");
}

a,
button,
input,
textarea,
select {
    outline-offset: 4px;
}

:focus-visible {
    outline: 2px solid var(--copper-light);
}

.skip-link {
    position: fixed;
    z-index: 100;
    top: 0.75rem;
    left: 0.75rem;
    padding: 0.75rem 1rem;
    color: var(--ink);
    background: var(--copper-light);
    font: 600 0.75rem/1 'IBM Plex Mono', monospace;
    transform: translateY(-160%);
    transition: transform 180ms ease;
}

.skip-link:focus {
    transform: translateY(0);
}

/* Navigation */
.nav-link {
    position: relative;
    padding: 0.75rem 0.8rem;
    color: #91877d;
    font: 500 0.75rem/1 'IBM Plex Mono', monospace;
    letter-spacing: 0.02em;
    transition: color 220ms ease;
}

.nav-link::after {
    position: absolute;
    right: 0.8rem;
    bottom: 0.4rem;
    left: 0.8rem;
    height: 1px;
    content: "";
    background: var(--copper);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 260ms var(--ease);
}

.nav-link:hover,
.nav-link.active {
    color: var(--text);
}

.nav-link:hover::after,
.nav-link.active::after {
    transform: scaleX(1);
}

.nav-cta,
.btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.65rem;
    border: 1px solid var(--copper-light);
    border-radius: 0.15rem;
    color: #fff8f2;
    background: var(--copper-dark);
    box-shadow: inset 0 1px rgba(255, 255, 255, 0.08);
    font-family: 'IBM Plex Mono', monospace;
    font-weight: 600;
    transition: color 220ms ease, background 220ms ease, transform 220ms var(--ease);
}

.nav-cta {
    padding: 0.72rem 1rem;
    font-size: 0.72rem;
}

.btn-primary {
    padding: 0.8rem 1.2rem;
    font-size: 0.78rem;
    letter-spacing: 0.01em;
}

.nav-cta:hover,
.btn-primary:hover {
    color: var(--ink);
    background: var(--copper-light);
    transform: translateY(-2px);
}

.nav-cta:active,
.btn-primary:active,
.btn-secondary:active {
    transform: translateY(1px);
}

.mobile-nav-link {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    padding: 0.85rem 0.5rem;
    border-bottom: 1px solid var(--line);
    color: #bbb2a8;
    font: 500 0.8rem/1 'IBM Plex Mono', monospace;
    transition: color 200ms ease, padding-left 200ms ease;
}

.mobile-nav-link:hover,
.mobile-nav-link.active {
    padding-left: 0.8rem;
    color: var(--copper-light);
}

.navbar-scrolled #navbar-inner {
    margin-top: 0.5rem;
    background: rgba(16, 15, 14, 0.94);
    border-color: var(--line-strong);
    box-shadow: 0 16px 45px rgba(0, 0, 0, 0.34);
}

/* Common interface */
.btn-secondary,
.btn-ghost {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.6rem;
    padding: 0.8rem 1.2rem;
    border: 1px solid var(--line-strong);
    border-radius: 0.15rem;
    color: #d8d2ca;
    background: transparent;
    font: 600 0.78rem/1.1 'IBM Plex Mono', monospace;
    transition: color 220ms ease, border-color 220ms ease, background 220ms ease, transform 220ms var(--ease);
}

.btn-secondary:hover,
.btn-ghost:hover {
    border-color: var(--copper);
    color: var(--copper-light);
    background: rgba(201, 106, 50, 0.06);
    transform: translateY(-2px);
}

.card,
.card-glow {
    position: relative;
    border: 1px solid var(--line);
    border-radius: 0.25rem;
    background: rgba(25, 24, 23, 0.72);
    box-shadow: 0 24px 60px rgba(0, 0, 0, 0.16);
    transition: border-color 260ms ease, background 260ms ease, transform 320ms var(--ease);
}

.card:hover,
.card-glow:hover {
    border-color: rgba(201, 106, 50, 0.45);
    background: rgba(35, 33, 31, 0.82);
}

.card-glow::before {
    position: absolute;
    top: -1px;
    left: -1px;
    width: 3rem;
    height: 1px;
    content: "";
    background: var(--copper);
    transition: width 400ms var(--ease);
}

.card-glow:hover::before {
    width: calc(100% + 2px);
}

.form-input {
    width: 100%;
    padding: 0.9rem 1rem;
    border: 1px solid var(--line-strong);
    border-radius: 0.2rem;
    color: var(--text);
    background: #191817;
    font-family: 'IBM Plex Mono', monospace;
    font-size: 0.85rem;
    transition: border-color 200ms ease, box-shadow 200ms ease;
}

.form-input::placeholder {
    color: #6d645c;
}

.form-input:focus {
    border-color: var(--copper);
    box-shadow: 0 0 0 3px rgba(201, 106, 50, 0.12);
    outline: none;
}

.thesis-form input[type="date"] {
    color-scheme: dark;
}

.thesis-file-input {
    padding: 0.65rem;
    color: #bbb2a8;
}

.thesis-file-input::file-selector-button {
    margin-right: 0.85rem;
    padding: 0.55rem 0.75rem;
    border: 1px solid var(--line-strong);
    border-radius: 0.15rem;
    color: #d8d2ca;
    background: var(--surface-2);
    font: 600 0.72rem/1 'IBM Plex Mono', monospace;
    cursor: pointer;
    transition: color 200ms ease, border-color 200ms ease;
}

.thesis-file-input::file-selector-button:hover {
    border-color: var(--copper);
    color: var(--copper-light);
}

.section-label {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    margin-bottom: 1.25rem;
    padding: 0;
    border: 0;
    border-radius: 0;
    color: var(--copper-light);
    background: transparent;
    font: 600 0.68rem/1.2 'IBM Plex Mono', monospace;
    letter-spacing: 0.14em;
    text-transform: uppercase;
}

.section-label::before {
    width: 1.8rem;
    height: 1px;
    content: "";
    background: var(--copper);
}

.section-label > i,
.section-label > span {
    display: none;
}

.section-title {
    max-width: 20ch;
    color: #f4f0eb;
    font-family: 'Archivo', sans-serif;
    font-size: clamp(2.3rem, 5vw, 4.6rem);
    font-weight: 600;
    letter-spacing: -0.055em;
    line-height: 0.98;
    text-wrap: balance;
}

.section-subtitle {
    max-width: 62ch;
    margin-top: 1.25rem;
    color: var(--muted);
    font-size: 1rem;
    line-height: 1.75;
    text-wrap: pretty;
}

.tech-badge {
    display: inline-flex;
    align-items: center;
    padding: 0.35rem 0.55rem;
    border: 1px solid var(--line);
    border-radius: 0.1rem;
    color: #a69d94;
    background: rgba(25, 24, 23, 0.75);
    font: 500 0.68rem/1 'IBM Plex Mono', monospace;
}

.gradient-text {
    color: var(--copper-light);
    background: none;
    -webkit-text-fill-color: currentColor;
}

.hero-grid {
    background-image:
        linear-gradient(rgba(201, 106, 50, 0.045) 1px, transparent 1px),
        linear-gradient(90deg, rgba(201, 106, 50, 0.045) 1px, transparent 1px);
    background-size: 72px 72px;
    mask-image: linear-gradient(to bottom, #000, transparent 88%);
}

.hero-glow {
    background: radial-gradient(ellipse 55% 45% at 68% 22%, rgba(201, 106, 50, 0.12), transparent 72%);
}

/* Home */
.home-hero {
    min-height: min(58rem, 100dvh);
    padding-top: 8.5rem;
    padding-bottom: 5rem;
}

.hero-kicker {
    color: var(--copper-light);
    font: 600 0.69rem/1.4 'IBM Plex Mono', monospace;
    letter-spacing: 0.13em;
    text-transform: uppercase;
}

.hero-title {
    max-width: 13ch;
    margin-top: 1.35rem;
    color: #f4f0eb;
    font-size: clamp(3rem, 6.6vw, 6.5rem);
    font-weight: 600;
    letter-spacing: -0.072em;
    line-height: 0.91;
    text-wrap: balance;
}

.hero-title em {
    color: var(--copper-light);
    font-style: normal;
}

.hero-copy {
    max-width: 58ch;
    color: #a69d94;
    font-size: clamp(1rem, 1.4vw, 1.18rem);
    line-height: 1.7;
    text-wrap: pretty;
}

.proof-line {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem 1.4rem;
    color: #7d746c;
    font: 500 0.68rem/1.3 'IBM Plex Mono', monospace;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.proof-line span::before {
    margin-right: 0.5rem;
    color: var(--copper);
    content: "/";
}

.dashboard-stage {
    position: relative;
    isolation: isolate;
    margin-top: 4rem;
    padding: clamp(0.5rem, 1.3vw, 1rem);
    border: 1px solid var(--line-strong);
    background: #141311;
    box-shadow: 0 45px 100px rgba(0, 0, 0, 0.48);
}

.dashboard-stage::before {
    position: absolute;
    z-index: -1;
    top: -12%;
    right: 8%;
    width: 38%;
    aspect-ratio: 1;
    content: "";
    border-radius: 50%;
    background: rgba(201, 106, 50, 0.2);
    filter: blur(90px);
}

.dashboard-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 2.6rem;
    padding: 0 0.7rem;
    color: #7d746c;
    font: 500 0.66rem/1 'IBM Plex Mono', monospace;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.dashboard-image {
    display: block;
    width: 100%;
    min-height: 15rem;
    border: 1px solid var(--line);
    filter: saturate(0.72) sepia(0.08) contrast(1.04);
    object-fit: cover;
    object-position: center;
}

.automation-stage {
    position: relative;
    isolation: isolate;
    margin-top: 4rem;
    padding: clamp(0.5rem, 1.3vw, 1rem);
    border: 1px solid var(--line-strong);
    background: #141311;
    box-shadow: 0 45px 100px rgba(0, 0, 0, 0.48);
}

.automation-stage::before {
    position: absolute;
    z-index: -1;
    top: -15%;
    right: 4%;
    width: 42%;
    aspect-ratio: 1;
    content: "";
    border-radius: 50%;
    background: rgba(201, 106, 50, 0.2);
    filter: blur(100px);
}

.automation-canvas {
    position: relative;
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(15rem, 0.38fr);
    min-height: 34rem;
    overflow: hidden;
    border: 1px solid var(--line);
    background:
        linear-gradient(rgba(201, 106, 50, 0.045) 1px, transparent 1px),
        linear-gradient(90deg, rgba(201, 106, 50, 0.045) 1px, transparent 1px),
        #11100f;
    background-size: 44px 44px;
}

.workflow-map {
    display: grid;
    grid-template-columns: minmax(9rem, 1fr) 3rem minmax(9rem, 1fr) 3rem minmax(11rem, 1.05fr);
    gap: 0;
    align-items: center;
    padding: 3rem clamp(1.5rem, 4vw, 4.5rem) 9rem;
}

.workflow-node {
    position: relative;
    min-width: 0;
    padding: 1.15rem;
    border: 1px solid var(--line-strong);
    background: rgba(25, 24, 23, 0.94);
    box-shadow: 0 18px 38px rgba(0, 0, 0, 0.26);
}

.workflow-node::after {
    position: absolute;
    top: -1px;
    left: -1px;
    width: 2.5rem;
    height: 1px;
    content: "";
    background: var(--copper);
}

.workflow-node strong,
.workflow-node small,
.node-type {
    display: block;
}

.workflow-node strong {
    overflow: hidden;
    color: #eeeae4;
    font: 600 0.86rem/1.3 'Archivo', sans-serif;
    text-overflow: ellipsis;
}

.workflow-node small {
    margin-top: 0.4rem;
    color: #6d645c;
    font: 500 0.62rem/1.3 'IBM Plex Mono', monospace;
}

.node-type {
    margin-bottom: 0.7rem;
    color: #91877d;
    font: 500 0.55rem/1 'IBM Plex Mono', monospace;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.node-status {
    position: absolute;
    top: 1rem;
    right: 1rem;
    width: 0.4rem;
    height: 0.4rem;
    border-radius: 50%;
    background: var(--copper-light);
    box-shadow: 0 0 0 4px rgba(229, 139, 74, 0.1);
}

.workflow-core {
    border-color: rgba(229, 139, 74, 0.56);
    background: #231913;
    transform: scale(1.08);
}

.workflow-core strong {
    color: var(--copper-light);
    font-family: 'IBM Plex Mono', monospace;
    font-size: 1.2rem;
}

.workflow-connector {
    position: relative;
    height: 1px;
    overflow: hidden;
    background: rgba(201, 106, 50, 0.32);
}

.workflow-connector span {
    position: absolute;
    top: -1px;
    left: 0;
    width: 0.45rem;
    height: 3px;
    background: var(--copper-light);
    box-shadow: 0 0 8px var(--copper);
    animation: workflow-pulse 2.2s linear infinite;
}

.workflow-outcomes {
    display: grid;
    gap: 0.8rem;
}

.automation-proof {
    position: relative;
    overflow: hidden;
    border-left: 1px solid var(--line-strong);
    background: #20201f;
}

.automation-proof::after {
    position: absolute;
    inset: 0;
    pointer-events: none;
    content: "";
    background: linear-gradient(to bottom, rgba(16, 15, 14, 0.05) 55%, rgba(16, 15, 14, 0.82));
}

.automation-proof img {
    width: 100%;
    height: 100%;
    filter: saturate(0.72) sepia(0.08) contrast(1.05);
    object-fit: cover;
    object-position: center 15%;
}

.proof-caption {
    position: absolute;
    z-index: 2;
    right: 0;
    bottom: 0;
    left: 0;
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    padding: 1rem;
    color: #bbb2a8;
    font: 500 0.58rem/1.2 'IBM Plex Mono', monospace;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.automation-log {
    right: auto;
    bottom: 1.5rem;
    left: clamp(1.5rem, 4vw, 4rem);
    width: min(31rem, calc(62% - 3rem));
}

@keyframes workflow-pulse {
    from { transform: translateX(-0.5rem); }
    to { transform: translateX(3.5rem); }
}

.terminal-card {
    position: absolute;
    z-index: 2;
    right: clamp(1rem, 4vw, 4rem);
    bottom: clamp(-3.5rem, -4vw, -2rem);
    width: min(29rem, calc(100% - 2rem));
    border: 1px solid rgba(229, 139, 74, 0.34);
    background: rgba(16, 15, 14, 0.95);
    box-shadow: 0 24px 65px rgba(0, 0, 0, 0.55);
    backdrop-filter: blur(14px);
}

.terminal-bar {
    display: flex;
    justify-content: space-between;
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--line);
    color: #7d746c;
    font: 500 0.62rem/1 'IBM Plex Mono', monospace;
}

.terminal-code {
    padding: 1.1rem;
    overflow: auto;
    color: #bbb2a8;
    font: 400 0.72rem/1.65 'IBM Plex Mono', monospace;
}

.terminal-code .prompt,
.terminal-code .ok {
    color: var(--copper-light);
}

.terminal-code .comment {
    color: #6d645c;
}

.stats-strip {
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
    background: rgba(25, 24, 23, 0.46);
}

.stat-item {
    position: relative;
    padding: 2rem 0;
    text-align: left;
}

.stat-item + .stat-item::before {
    position: absolute;
    top: 26%;
    bottom: 26%;
    left: -1rem;
    width: 1px;
    content: "";
    background: var(--line);
}

.service-index {
    color: var(--copper);
    font: 600 0.65rem/1 'IBM Plex Mono', monospace;
}

.service-row {
    display: grid;
    grid-template-columns: 4rem minmax(0, 0.9fr) minmax(0, 1.1fr) auto;
    gap: 1.5rem;
    align-items: start;
    padding: 1.8rem 0;
    border-top: 1px solid var(--line);
    transition: padding 280ms var(--ease), border-color 280ms ease;
}

.service-row:hover {
    padding-left: 0.7rem;
    border-color: var(--copper-dark);
}

.project-feature {
    display: grid;
    grid-template-columns: minmax(0, 1.5fr) minmax(17rem, 0.5fr);
    border: 1px solid var(--line);
    background: var(--surface);
}

.project-feature-media {
    min-height: 26rem;
    overflow: hidden;
    border-right: 1px solid var(--line);
}

.project-feature-media img {
    width: 100%;
    height: 100%;
    filter: saturate(0.75) contrast(1.05);
    object-fit: cover;
    transition: transform 700ms var(--ease), filter 400ms ease;
}

.project-feature:hover img {
    filter: saturate(1) contrast(1.05);
    transform: scale(1.025);
}

.evidence-panel {
    border-left: 1px solid var(--copper-dark);
    background: linear-gradient(125deg, rgba(201, 106, 50, 0.09), rgba(25, 24, 23, 0.5));
}

.repo-row {
    display: grid;
    grid-template-columns: minmax(0, 0.8fr) minmax(0, 1fr) auto;
    gap: 1rem;
    align-items: center;
    padding: 1rem 0;
    border-top: 1px solid var(--line);
    font-family: 'IBM Plex Mono', monospace;
}

.final-cta {
    position: relative;
    overflow: hidden;
    border-top: 1px solid var(--line);
    background: #141311;
}

.final-cta::after {
    position: absolute;
    right: -4rem;
    bottom: -14rem;
    width: 34rem;
    height: 34rem;
    content: "";
    border: 1px solid rgba(201, 106, 50, 0.14);
    border-radius: 50%;
    box-shadow: 0 0 0 6rem rgba(201, 106, 50, 0.025), 0 0 0 12rem rgba(201, 106, 50, 0.018);
}

/* Courses POC */
.course-hero {
    padding-top: 10rem;
    padding-bottom: 6rem;
}

.course-title {
    max-width: 16ch;
    margin-top: 1.35rem;
    color: #f4f0eb;
    font-size: clamp(3rem, 6.2vw, 6.2rem);
    font-weight: 600;
    letter-spacing: -0.07em;
    line-height: 0.92;
    text-wrap: balance;
}

.course-title em {
    color: var(--copper-light);
    font-style: normal;
}

.course-console {
    margin-top: 5rem;
    border: 1px solid var(--line-strong);
    background: #141311;
    box-shadow: 0 36px 90px rgba(0, 0, 0, 0.32);
}

.course-console-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.course-console-step {
    position: relative;
    min-height: 12rem;
    padding: 2rem;
    border-top: 1px solid var(--line);
}

.course-console-step + .course-console-step {
    border-left: 1px solid var(--line);
}

.course-console-step::after {
    position: absolute;
    right: 2rem;
    bottom: 2rem;
    width: 0.45rem;
    height: 0.45rem;
    content: "";
    border-radius: 50%;
    background: var(--copper);
    box-shadow: 0 0 0 5px rgba(201, 106, 50, 0.08);
}

.course-console-step span,
.course-console-step strong {
    display: block;
}

.course-console-step span {
    color: var(--copper-light);
    font: 600 0.62rem/1 'IBM Plex Mono', monospace;
    letter-spacing: 0.09em;
}

.course-console-step strong {
    margin-top: 1.2rem;
    color: #eeeae4;
    font-size: 1.15rem;
}

.course-console-step p {
    max-width: 32ch;
    margin-top: 0.65rem;
    color: #7d746c;
    font-size: 0.82rem;
    line-height: 1.6;
}

.featured-course {
    display: grid;
    grid-template-columns: minmax(0, 1.6fr) minmax(18rem, 0.58fr);
    border: 1px solid rgba(201, 106, 50, 0.42);
    background: #191817;
    box-shadow: 0 35px 80px rgba(0, 0, 0, 0.26);
}

.featured-course-main {
    min-width: 0;
    padding: clamp(1.6rem, 4vw, 4rem);
}

.featured-course-aside {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    min-width: 0;
    padding: clamp(1.6rem, 3vw, 2.5rem);
    border-left: 1px solid var(--line);
    background:
        linear-gradient(rgba(201, 106, 50, 0.035) 1px, transparent 1px),
        linear-gradient(90deg, rgba(201, 106, 50, 0.035) 1px, transparent 1px),
        #141311;
    background-size: 36px 36px;
}

.course-flag {
    display: inline-flex;
    padding: 0.42rem 0.6rem;
    border: 1px solid rgba(201, 106, 50, 0.38);
    color: var(--copper-light);
    background: rgba(201, 106, 50, 0.07);
    font: 600 0.62rem/1 'IBM Plex Mono', monospace;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.workflow-mini {
    display: flex;
    align-items: center;
    gap: 0.7rem;
    min-width: 0;
    overflow-x: auto;
    padding-bottom: 0.3rem;
}

.workflow-mini span {
    flex: 0 0 auto;
    padding: 0.7rem 0.85rem;
    border: 1px solid var(--line-strong);
    color: #a69d94;
    background: #141311;
    font: 500 0.65rem/1 'IBM Plex Mono', monospace;
}

.workflow-mini span.active {
    border-color: var(--copper);
    color: var(--copper-light);
    background: #231913;
}

.workflow-mini i {
    color: var(--copper-dark);
    font-style: normal;
}

.course-metric {
    padding: 1.15rem;
    background: #141311;
}

.course-metric span,
.course-metric small {
    display: block;
}

.course-metric span {
    color: #eeeae4;
    font: 600 1rem/1.2 'IBM Plex Mono', monospace;
}

.course-metric small {
    margin-top: 0.45rem;
    color: #6d645c;
    font-size: 0.68rem;
}

.course-list {
    display: grid;
    gap: 0.8rem;
}

.course-list li {
    position: relative;
    padding-left: 1.2rem;
    color: #a69d94;
    font-size: 0.8rem;
    line-height: 1.45;
}

.course-list li::before {
    position: absolute;
    top: 0.48em;
    left: 0;
    width: 0.35rem;
    height: 0.35rem;
    content: "";
    background: var(--copper);
}

.course-card {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    min-height: 34rem;
    padding: clamp(1.5rem, 3vw, 2.5rem);
    border: 1px solid var(--line);
    background: rgba(25, 24, 23, 0.72);
    transition: border-color 260ms ease, transform 320ms var(--ease), background 260ms ease;
}

.course-card:hover {
    border-color: rgba(201, 106, 50, 0.45);
    background: #191817;
    transform: translateY(-4px);
}

.course-proof {
    min-height: 8rem;
    padding: 1.4rem;
    background: var(--ink);
}

.course-proof strong,
.course-proof span {
    display: block;
}

.course-proof strong {
    color: #eeeae4;
    font: 600 1.3rem/1.2 'IBM Plex Mono', monospace;
}

.course-proof span {
    margin-top: 0.55rem;
    color: #6d645c;
    font-size: 0.72rem;
    line-height: 1.4;
}

.course-form {
    padding: clamp(1.5rem, 4vw, 3rem);
    border: 1px solid var(--line-strong);
    background: #191817;
    box-shadow: 0 28px 70px rgba(0, 0, 0, 0.24);
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    color: #a69d94;
    font: 500 0.68rem/1.2 'IBM Plex Mono', monospace;
}

/* Articles */
.prose-vulpes {
    color: #bbb2a8;
    font-size: 1.04rem;
    line-height: 1.85;
}

.prose-vulpes h2,
.prose-vulpes h3 {
    color: #f4f0eb;
    font-family: 'Archivo', sans-serif;
    font-weight: 600;
    letter-spacing: -0.03em;
}

.prose-vulpes h2 {
    margin: 3.5rem 0 1.25rem;
    font-size: clamp(1.7rem, 3vw, 2.4rem);
    line-height: 1.15;
}

.prose-vulpes h3 {
    margin: 2.4rem 0 0.8rem;
    font-size: 1.3rem;
}

.prose-vulpes p {
    margin: 0 0 1.4rem;
}

.prose-vulpes strong {
    color: #eeeae4;
    font-weight: 600;
}

.prose-vulpes ul,
.prose-vulpes ol {
    margin: 0 0 1.6rem;
    padding-left: 1.5rem;
}

.prose-vulpes ul { list-style: square; }
.prose-vulpes ol { list-style: decimal; }
.prose-vulpes li { margin-bottom: 0.65rem; }
.prose-vulpes li::marker { color: var(--copper); }
.prose-vulpes a { color: var(--copper-light); text-decoration: underline; text-underline-offset: 3px; }

.prose-vulpes code {
    padding: 0.15rem 0.4rem;
    border: 1px solid var(--line);
    color: #fdba74;
    background: #191817;
    font: 0.86em 'IBM Plex Mono', monospace;
}

.prose-vulpes pre {
    margin: 1.8rem 0;
    padding: 1.2rem;
    overflow-x: auto;
    border-left: 2px solid var(--copper);
    background: #141311;
}

.prose-vulpes pre code { padding: 0; border: 0; background: transparent; }
.prose-vulpes blockquote { margin: 2rem 0; padding-left: 1.4rem; border-left: 2px solid var(--copper); color: #a69d94; }
.prose-vulpes img { margin: 2rem 0; border: 1px solid var(--line); max-width: 100%; height: auto; }
.prose-vulpes figure { margin: 2.5rem 0; }
.prose-vulpes figure img { display: block; width: 100%; margin: 0; border-radius: 4px; background: #0b0a09; }
.prose-vulpes figcaption { margin-top: 0.75rem; color: #91877d; font-size: 0.85rem; line-height: 1.6; text-align: center; }

.prose-vulpes .article-lead,
.prose-vulpes .article-feature,
.prose-vulpes .article-kpi,
.prose-vulpes .article-closing,
.prose-vulpes .article-checklist {
    border: 1px solid var(--line);
    border-radius: 0.25rem;
    background: rgba(25, 24, 23, 0.72);
}

.prose-vulpes .article-lead,
.prose-vulpes .article-closing { margin: 2rem 0; padding: clamp(1.4rem, 4vw, 2.25rem); }
.prose-vulpes .article-eyebrow,
.prose-vulpes .article-feature-number { display: block; margin-bottom: 0.8rem; color: var(--copper-light); font: 600 0.7rem 'IBM Plex Mono', monospace; letter-spacing: 0.12em; }
.prose-vulpes .article-lead-title { margin-bottom: 0.85rem; color: #fff; font-size: clamp(1.35rem, 3vw, 1.8rem); font-weight: 600; line-height: 1.3; }
.prose-vulpes .article-lead p:last-child,
.prose-vulpes .article-feature p:last-child,
.prose-vulpes .article-closing p:last-child { margin-bottom: 0; }
.prose-vulpes .article-kpis { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; margin: 2rem 0 3.5rem; }
.prose-vulpes .article-kpi { padding: 1.4rem; }
.prose-vulpes .article-kpi-value { display: block; margin-bottom: 0.35rem; color: var(--copper-light); font: 600 clamp(2rem, 5vw, 2.8rem)/1 'IBM Plex Mono', monospace; }
.prose-vulpes .article-kpi-label { display: block; color: #d8d2ca; font-size: 0.95rem; }
.prose-vulpes .article-feature-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1rem; margin: 1.75rem 0 2.5rem; }
.prose-vulpes .article-feature { padding: 1.35rem; }
.prose-vulpes .article-feature h3 { margin: 0 0 0.55rem; font-size: 1.05rem; }
.prose-vulpes .article-feature p { color: #91877d; font-size: 0.93rem; line-height: 1.65; }
.prose-vulpes .article-checklist { margin: 1.5rem 0 2.5rem; padding: 1.4rem 1.4rem 1.4rem 3rem; }

/* Footer and motion */
.footer-label {
    margin-bottom: 1rem;
    color: #6d645c;
    font: 600 0.65rem/1 'IBM Plex Mono', monospace;
    letter-spacing: 0.13em;
    text-transform: uppercase;
}

.footer-link {
    color: #91877d;
    transition: color 200ms ease;
}

.footer-link:hover {
    color: var(--copper-light);
}

.whatsapp-fab {
    position: fixed;
    z-index: 45;
    right: 1.25rem;
    bottom: 1.25rem;
    display: inline-flex;
    align-items: center;
    gap: 0.55rem;
    padding: 0.75rem 1rem;
    border: 1px solid rgba(255, 255, 255, 0.22);
    border-radius: 0.2rem;
    color: #fff;
    background: #187c48;
    box-shadow: 0 16px 38px rgba(0, 0, 0, 0.38);
    font: 600 0.75rem/1 'IBM Plex Mono', monospace;
    transition: background 220ms ease, transform 220ms var(--ease);
}

.whatsapp-fab i {
    font-size: 1.15rem;
}

.whatsapp-fab:hover {
    color: #fff;
    background: #20985b;
    transform: translateY(-2px);
}

.whatsapp-fab:active {
    transform: translateY(1px);
}

@keyframes fade-down {
    from { opacity: 0; transform: translateY(-8px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes fade-up {
    from { opacity: 0; transform: translateY(24px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes slide-in {
    from { opacity: 0; transform: translateX(100%); }
    to { opacity: 1; transform: translateX(0); }
}

@keyframes fade-out {
    to { opacity: 0; transform: translateY(-10px); }
}

.animate-fade-down { animation: fade-down 250ms ease-out; }
.animate-fade-up { animation: fade-up 700ms var(--ease) both; }
.animate-delay-100 { animation-delay: 80ms; }
.animate-delay-200 { animation-delay: 160ms; }
.animate-delay-300 { animation-delay: 240ms; }
.animate-delay-400 { animation-delay: 320ms; }
.alert-msg { animation: slide-in 400ms ease-out, fade-out 400ms 4s ease-out forwards; }

@media (max-width: 900px) {
    .home-hero { min-height: auto; padding-top: 7.5rem; }
    .dashboard-stage { margin-bottom: 5rem; }
    .automation-stage { margin-bottom: 5rem; }
    .automation-canvas { grid-template-columns: 1fr minmax(12rem, 0.38fr); }
    .workflow-map { grid-template-columns: 1fr; gap: 0.75rem; padding: 2rem 2rem 10rem; }
    .workflow-connector { width: 1px; height: 1.5rem; margin-left: 50%; }
    .workflow-connector span { display: none; }
    .workflow-core { transform: none; }
    .workflow-outcomes { grid-template-columns: 1fr 1fr; }
    .automation-log { width: calc(62% - 3rem); }
    .service-row { grid-template-columns: 3rem minmax(0, 0.85fr) minmax(0, 1.15fr); }
    .service-row > :last-child { display: none; }
    .project-feature { grid-template-columns: 1fr; }
    .project-feature-media { min-height: 19rem; border-right: 0; border-bottom: 1px solid var(--line); }
    .repo-row { grid-template-columns: 1fr auto; }
    .repo-row > :nth-child(2) { display: none; }
    .course-hero { padding-top: 8.5rem; }
    .featured-course { grid-template-columns: 1fr; }
    .featured-course-aside { border-top: 1px solid var(--line); border-left: 0; }
}

@media (max-width: 640px) {
    .home-hero { padding-top: 6.7rem; padding-bottom: 3.5rem; }
    .hero-title { font-size: clamp(2.8rem, 15vw, 4.5rem); }
    .dashboard-stage { margin-top: 2.5rem; margin-bottom: 7.5rem; padding: 0.4rem; }
    .automation-stage { margin-top: 2.5rem; margin-bottom: 7.5rem; padding: 0.4rem; }
    .automation-canvas { display: grid; grid-template-columns: 1fr; min-height: 0; overflow: hidden; }
    .workflow-map { padding: 1.25rem; }
    .workflow-outcomes { grid-template-columns: 1fr 1fr; gap: 0.5rem; }
    .workflow-node { padding: 0.9rem; }
    .workflow-node strong { font-size: 0.75rem; }
    .automation-proof { position: relative; top: auto; right: auto; bottom: auto; width: 100%; height: min(32rem, 130vw); border: 0; border-top: 1px solid var(--line-strong); }
    .automation-proof img { object-position: center top; }
    .terminal-card.automation-log { position: relative; right: auto; bottom: auto; left: auto; width: auto; margin: 0.75rem; }
    .dashboard-image { min-height: 14rem; }
    .terminal-card { right: 0.75rem; bottom: -7rem; width: calc(100% - 1.5rem); }
    .terminal-code { max-height: 10rem; font-size: 0.64rem; }
    .stat-item { padding: 1.25rem 0; }
    .stat-item + .stat-item::before { display: none; }
    .service-row { grid-template-columns: 2.3rem 1fr; gap: 0.7rem; }
    .service-row > :nth-child(3),
    .service-row > :last-child { display: none; }
    .project-feature-media { min-height: 14rem; }
    .course-hero { padding-top: 7.5rem; padding-bottom: 4.5rem; }
    .course-title { font-size: clamp(2.8rem, 14vw, 4.3rem); }
    .course-console { margin-top: 3rem; }
    .course-console-grid { grid-template-columns: 1fr; }
    .course-console-step { min-height: auto; padding: 1.4rem; }
    .course-console-step + .course-console-step { border-left: 0; }
    .course-console-step::after { right: 1.4rem; bottom: auto; top: 1.4rem; }
    .course-card { min-height: 30rem; }
    .prose-vulpes { font-size: 1rem; line-height: 1.75; }
    .prose-vulpes .article-kpis,
    .prose-vulpes .article-feature-grid { grid-template-columns: 1fr; }
    .whatsapp-fab { right: 1rem; bottom: 1rem; width: 3rem; height: 3rem; justify-content: center; padding: 0; border-radius: 50%; }
    .whatsapp-fab span { position: absolute; width: 1px; height: 1px; padding: 0; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
}

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
}